That's like saying 'cars were better made in the 1950's because they used tons of steel'. Like they were 'heavier and more robust' - but that doesn't mean better.
Foundations are way better, more robust, especially weatherized. Windows today are like magic compared to windows 100 years ago.
What we do more poorly now is we don't use wood everywhere, aka doors, and certain kinds of workmanship are not there - like winding staircases, mouldings - but you can easily have that if you want to pay for it. That's a choice.
AI is power and leverage, it will make better things as long as it's directed by skilled operators.
Buildings don't get taken down because 'they were built poorly', it's cheaper to rebuild than refurbish.
And we can accommodate for 'selection bias'.
We have all of the historical evidence we could ever want for 'how things were built', basically 'infinity examples'.
I think some things were more robust, particularly some of the old framing, like in Europe, with non load-bearing walls etc. Those will stand for 1K years, but arguably unnecessary.
this is not true in my experience. prefab kits of all sizes (from sheds to houses to barns, like were once possible to order from a Sears catalog) have worse tolerances than a carpenter working on site. you can measure 3 times and cut perfectly, and still end up with a few mm gap (or sometimes worse) after tiny errors accumulate as you assemble piece after piece. it _requires_ measuring as you go and cutting on site to handle this small amount of drift and to really produce something of high quality. it doesn't come in a box
Correct about large scale kits. I had meant to head off the fact that preassembled pieces like windows have improved a lot, things that used to be assembled on-site but are now delivered as a unit or small kit.